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THERESA KELLER FNP-C
NPI 1447085733
Nurse Practitioner - Family in Ithaca, NY

Active since September 05, 2024PECOS EnrolledAccepts Medicare Assignment
1051 CRAFT RD, ITHACA, NY 14850(607) 257-1107 Get Directions Write a Review

NPPES record last updated: August 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 13, 2026, Oct 11, 2024, Sep 5, 2024 (3 updates tracked since 2024).

About Theresa Keller Fnp-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THERESA KELLER FNP-C (NPI 1447085733) is an individual family provider in Ithaca, New York, licensed in Florida (APRN11028945) and active in the NPI registry since September 2024. She is enrolled in Medicare PECOS, is affiliated with Cayuga Medical Center At Ithaca, and maintains 6 additional practice locations.

NPPES Registry Identity

NPI1447085733
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameTHERESA KELLERCredential: FNP-C
Location Address1051 CRAFT RDIthaca, NY 14850-1016
Mailing Address1051 Craft RdIthaca, NY 14850-1016 · (607) 257-1107 · Fax (607) 257-0369
Phone(607) 257-1107
Sole ProprietorYes
Medical School CMSOtherGraduated 2023
Enumeration DateSeptember 5, 2024
Last NPPES UpdateAugust 13, 20263 updates tracked since enumeration
NPPES CertifiedAugust 13, 2026
✔ NPI 1447085733 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
Licenses✔ Licensed in FL · APRN11028945✔ Licensed in NY · F355021
Also ListedNurse PractitionerTaxonomy 363L00000X · License APRN11028945 (FL)
1051 CRAFT RD, Ithaca, NY 14850
Open in Google Maps ↗

Secondary Practice Locations 6

Location 1870 111th Ave N Ste 4Naples, FL 34108-1869 · Phone (941) 444-0011 · Fax (603) 952-3900
Location 28614 State Road 70 E Ste 101Bradenton, FL 34202-3710 · Phone (941) 444-0011 · Fax (603) 952-3900
Location 3701 Northpoint Pkwy Ste 104West Palm Beach, FL 33407-1950 · Phone (941) 444-0011 · Fax (603) 952-3900
Location 41400 N US Highway 441 Ste 524The Villages, FL 32159-8984 · Phone (941) 444-0011 · Fax (603) 952-3900
Location 513770 Plantation Rd # 103Fort Myers, FL 33912-4460 · Phone (941) 444-0011 · Fax (603) 952-3900
Location 61131 S Orange AveOrlando, FL 32806-1226 · Phone (941) 444-0011 · Fax (603) 952-3900

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Theresa Keller Fnp-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6901330562
PECOS Enrollment IDI20241106000012
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Theresa Keller reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Dermatology Associates Of Ithaca, LLC
Same address
Dermatology
1051 CRAFT RD
Ithaca, NY 14850
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Josephine C. Mcallister, M.D., LLC
  • 4 clinicians in this Medicare group
NPI 1609170992 (607) 257-1107
Onspot-Fl
1,140 mi
Dermatology
13770 PLANTATION RD # 103
Fort Myers, FL 33912
  • Reassigned Medicare billing, Florida enrollment
  • 28 clinicians in this Medicare group
NPI 1144827577 (941) 444-0011

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Cayuga Medical Center At Ithaca

Acute Care Hospitals · Ithaca, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330307
Location101 Dates DriveIthaca, NY 14850 · Tompkins County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14850 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.93 typical visit price
range $54.87 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARK A WERNHAM MS,PA-C
Physician Assistant (Medical)
1051 CRAFT RD
ITHACA, NY 14850
Tompkins County (607) 257-1107
DONNA JO BRIGHAM FNP
Nurse Practitioner
1051 CRAFT RD
ITHACA, NY 14850
Tompkins County (607) 257-1107
DERMATOLOGY ASSOCIATES OF ITHACA, LLC
Dermatology
1051 CRAFT RD
ITHACA, NY 14850
Tompkins County (607) 257-1107
JOSEPHINE C MCALLISTER MD
Dermatology
1051 CRAFT RD
ITHACA, NY 14850
Tompkins County (607) 257-1107
TONYAH BELL NP
Nurse Practitioner (Family)
1051 CRAFT RD
ITHACA, NY 14850
Tompkins County (607) 257-1107

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Theresa Keller's NPI number?

The NPI number for Theresa Keller is 1447085733. It was assigned to this individual provider in the NPPES registry on September 5, 2024.

Where is Theresa Keller located?

Theresa Keller practices at 1051 Craft Rd, Ithaca, NY 14850. The listed phone number is (607) 257-1107.

What is Theresa Keller's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Theresa Keller enrolled in Medicare?

Yes. Theresa Keller is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Theresa Keller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Theresa Keller reassigns Medicare benefits to 2 organizations: Dermatology Associates Of Ithaca, LLC (Ithaca, NY) and Onspot-Fl (Fort Myers, FL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Theresa Keller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Theresa Keller affiliated with any hospitals?

According to CMS data, Theresa Keller is affiliated with Cayuga Medical Center At Ithaca.

When was this NPI record last updated?

The NPPES record for Theresa Keller was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.